1, the discovery of titanium understanding

Titanium is a silvery white metal, as early as in 1791, the British scientist William in Britain GeLiGeEr secret that han suburbs find this magical elements, first discovered the new elements. After four years, the German chemist carat LuoTe and from Hungary cloth at Iraq a Nick red ore, discovered the element, and Greek mythology hero for name. Titanium means "the earth's son". Ti's appearance is very like steel, but far more than steel hard, and only half the weight of iron. At normal temperature, titanium can "lying" safe and sound in all kinds of strong acid, strong alkali; Even the most fierce acid- - - wang, s., also can't corrosion it. Someone once put a piece of titanium threw it into the sea, after five years later to take out, still shine, there isn't a rusty spot. As the saying goes: "true gold fears not the fire." But the melting point of titanium than gold more than 600 degrees Celsius higher. Because the ability of titanium special, so has the extensive use. Now, titanium is build planes and tanks, ships and submarines indispensable metal. In a spacecraft and missile, also lots of used titanium instead of iron and steel. Titanium and nitrogen, carbon with generated nitriding titanium, titanium carbide, is also very hard compounds, they heat can even than the titanium high 1 times. So hard and heat-resistant material, can instead of super steel, producing high-speed cutting tool. Many of the titanium special properties, also in chemical industry, ultrasonic and superconducting technology applied in art. However, titanium have a biggest drawback, is refining more difficult. This is mainly because titanium under high temperature can and oxygen, carbon, nitrogen, and many other elements combined. So people have put the titanium as a "rare metal", actually, the content of titanium accounts for about 6 ‰ weight of the earth's crust, than copper, tin, mn, zn's combined more than 10 times. In the world, our country titanium reserves the most, sichuan panzhihua, titanium reserves accounts for over 90% in China, is the world of rare big titanium ore.

2, titanium introduction (I)

Titanium is a kind of very special metal, quality of a material is very light, but it is very tough and corrosion resistance, it won't like silver may become black, lifelong keep itself at room temperature is tonal. The melting point of titanium and platinum similar, because this often used for aerospace. Military precision components. With current and chemical process, will produce a different color.

Titanium as the name as it is a kind of a heroic metal, yinliang, lightsome, solid. In chemistry, well-known of strong corrosive product "wang, s." that could swallow silver, gold, so that the so-called "no rust" stainless steel erosion, become the grunge mottled, recognition. However, "wang, s." of titanium helpless. In "wang, s." in the water a few years of titanium, still is shiny, gorgeous! Have excellent resistance to acid and alkali corrosion resistance; If the titanium added to the stainless steel, with only about one percent, is greatly improve the ability to resist rust. When in the air at titanium stability; Because titanium have density is small, high temperature resistance, corrosion resistance, excellent characteristics, titanium alloy high strength, it density is small, strength, and density is half of the steel and iron and steel and intensity almost; Titanium is high temperature resistant, and low temperature. In 253 ℃ ~ 500 ℃-so wide temperature range can keep high strength. These advantages is the space for metal. Titanium alloy is making rocket engine shell and satellites, the spacecraft material. Titanium have "space metal," said. Because have these advantages of titanium, so 50 s, has become a highlight of the metals.